Improvement in lamps



'nUrUs nurTIN-c.;v or RANDOLPH; viiinMoNa.l

Letters Patent No. 111,237, dated .lanuary.24, '18711. i

IMPROVEMENT IN LAMPS.

The 'Schedule referred to in these Letters Patent and makingrpsxt of the same'.

. I, RUFUS N'TTmG, of Randolpln'county of Orange and State of Vermout,"have inventedcertain Improvements in Lamps, ofwhich the followingr is a `speeilication.`

rlhe nature 'of' my invention consists inthe construction oi' lamp-collars, (as au article of` manufacture and commerce, independent of f'ounts,-and adapted alike to glass, compositionfor metal lamps,) with an l 'extension downward (called'a guard-tube extension) -of that part inwhich is cnt the female Vscrew for. rceeivi'ng the male screw of theburner-basc so far as may be, and yet leave suliicicnt space between its open lower end and the bottom of the lamp-fomit in which it is used for extra-length of wick to lie promiscuously thereon, and also allow spacefor convenient washing out, the same Ahaving a small hole api-oper distance from the top,the objects of which extension heilig to prevent the splashing up of the eil or'uicl and leaking out around the joint between the'base of the burner "and collar when agitated, an'd somewhat to operate as a preventivev against explosions, and as areflcctor of light which enables the one filling `they lamp tofsce much better bow full the lamp is getting (incase of metallic lamps) than when there is no such tube, and the fount is consequently dark within, while the hole affords a chance of' escape for the air while filling the lamp, and alsov a permanent mask to the eye to facilitate the filling of the lamp to a. proper fullness, .in case of metallic lamps, which cannot be seen through likeA glass lamps. v f The drawing N 1 represents a vertical transverse section of' the collar B and the guard-tube extension C, showing the female screwG and the gauge or venthole F. v v The drawing No. 2 shows a vertical transverse section of a common globular lam'pfount, A, the -collar '33, guard-tube extension C, fluid-burner D, wickfll, gauge or veut-hole F, and a filling tube, H.

. A is made .in any approved form and manner, and B may be made in the usual form and manner, (i. c.,

-by being dropped, swaged, pressed, drawn, or 'eut quicklyf'rom a single piece of metal,) except-ing that it is extended downwardly from the bottom of the female screwG two inches', more or less,-Iaceording tothe depth of the fonnt for which it istlesigned, and as near the bottouz'oi thc fount as may be, and allow of' sufficient ro'om for extra length of wiclc to lie promiscuously on the bottoml of the t'ount and for e011-, vvenient washing,l for which oln'ects the bottom must `not he closed. f 'l li' is a small hele about half an inch lower-than the outsidcfot the collar Bffor the cfa permanent `not be seen through of various lengths, according to the different Aunsteadilyseas t'o agita-te the fluid.

mask for the :filling ofthe llamp to a proper fullness, (whenin a metallic or composition lan1p,=\vhieh canlik e glass,) and also to afford egress of the air from the fount when being filled, or explosivo gases which may have form-ed in the fouut.

Mlhis guard-tube extension G isdcsigned to be milde depths of the various styles of'lamp-founts for which it is designed, and its. operation is to prevent all the fluid or oil in the fonnt, outside of it, from coming inl counot liquid-tight joint between tact with the generally the Thale screw ofthe burner l) and the female screw Got' the collar, andl thus preventstlie usual leaking out upon the top of' the lamp (alnldangerot igniting whenlight oils are used) when the lamp is carried ltalso acts, when applied to metallic founts or any that are not transparent, as a reflector or condenser ol' the lightfalling into the collar when the lamp is heilig filled, and greatly facilitates thc filling of it to a proper fullness.

l am aware of the lvarims devices that have been adopted to prevent the explosionor spilling of lamps,- lincluding various kinds of double and single, conical, parallel, and globular-tubes, in part orwholly perforated, or Iliade of gauze, with more or less compli- 'cated fixtures withilnand situated in the center of the f'ount, and connected to the fount or collar, or both; but I am not aware that there have been,l any made having tubessimilar to mine in construction and ob jedts, and constituting a part ofthe collante be struck, eut, dropped, drawn, or pressed quicklyaml cheaply of one piece of'-inctal, as the common collars for glass lamps hzwe'heretofbrc been; therefore l do not claim the construction vof lamp-fouuts having gauze, per-A forated, or tight tubes extending downward from the collar to or near the bLottom ot' the f'ouut, or 1ampcollars havingthese tintin-'es attached to them; but

I claim as my invention- V'.lhe construction of' lamp-collars of a of mctal as an articleof manufacture, alike adapted to glass, composition, 0r metallic lamps, o'ffwhatever size, style, or construction, liaviuga downward. ex: tension forming a metallic tight the top and bottom, and having the top, substantially as and for orth.

singley pieceJ a lateral hole .Y near the lpurposes l set .RUFUS UTTIN G.

Witnesses:

.Tous l). NUTTING, I. H. Nu'rrmo,

tube, open only at 

